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Finding the Fourth Proportional to 549,432, 758,179.36 and 304,400.28

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Solution

The fourth proportional to 549,432, 758,179.36 and 304,400.28 is: 420,052.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,432 : 758,179.36 = 304,400.28 : x
  2. Step 2: Convert to fraction form
    549,432/758,179.36 = 304,400.28/x
  3. Step 3: Cross multiply
    549,432x = 758,179.36 × 304,400.28
  4. Step 4: Simplify right side
    549,432x = 230,790,009,474.22
  5. Step 5: Solve for x
    x = 230,790,009,474.22/549,432
  6. Step 6: Final answer
    x = 420,052.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.